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  • Passing Data thru NSTimer UserInfo

    - by zorro2b
    I a trying to pass data thru userInfo for an NSTimer call. What is the best way to do this? I am trying to use an NSDictionary, this is simple enough when I have objective c objects, but what about other data? I want to do something like this, which doesn't work as is: - (void) play:(SystemSoundID)sound target:(id)target callbackSelector:(SEL)selector { NSLog(@"pause ipod"); [iPodController pause]; theSound = sound; NSMutableDictionary *cb = [[NSMutableDictionary alloc] init]; [cb setObject:(id)&sound forKey:@"sound"]; [cb setObject:target forKey:@"target"]; [cb setObject:(id)&selector forKey:@"selector"]; [NSTimer scheduledTimerWithTimeInterval:0 target:self selector: @selector(notifyPause1:) userInfo:(id)cb repeats:NO]; }

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  • collapsible grid in Silverlight 4

    - by prince23
    hi, I want to create a collapsible grid in Silverlight 4. once user clicks on row of the datagrid if that row has any child row it should be shown. if again user clicks the same row should hide the child row what was shown eariler. right now i am able to show data in datagrid once the user clicks any row i am able get the id of the row what i have clicked and go to DB and get the result. but how will i again bind the new datatable to datagrid agin. below the row what i have clciked private void dgData2_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { if (dgData2.SelectedIndex >= 0) { //Get Selected Row var element = (TextBlock)dgData2.Columns[0].GetCellContent(dgData2.SelectedItem); } } i am new to silverlight please let me know any code that can help e out Thanks in advance for any help prince

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  • Modifying reference member from const member function in C++

    - by Philipp
    I am working on const-correctness of my code and just wondered why this code compiles: class X { int x; int& y; public: X(int& _y):y(_y) { } void f(int& newY) const { //x = 3; would not work, that's fine y = newY; //does compile. Why? } }; int main(int argc, char **argv) { int i1=0, i2=0; X myX(i1); myX.f(i2); ... } As far as I understand, f() is changing the object myX, although it says to be const. How can I ensure my compiler complains when I do assign to y? (Visual C++ 2008) Thank a lot!

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  • Mouse stops working after changing function

    - by heyohletsgo
    I'm making a console board game on c++, and i've been able to make the mouse work in the first function, the menu one, however, when i get to the getmove function and need to click on a house, it simply doesn't work.. Can anyone help? This is the class with the mouse. #include <cstdlib> #include <iostream> #include <process.h> #include <windows.h> #include <time.h> #include <stdio.h> using namespace std; void Game(); int Chu(); int rato(int &row, int &col) { HANDLE hIn; hIn = GetStdHandle(STD_INPUT_HANDLE); bool Continue = TRUE; INPUT_RECORD InRec; DWORD NumRead; HWND window = GetConsoleWindow(); POINT cursorPos; RECT wpos; int x = 0; int y = 0; //cout << hIn << endl; FlushConsoleInputBuffer(hIn); while (Continue) { ReadConsoleInput(hIn, &InRec, 1, &NumRead); switch (InRec.EventType) { case MOUSE_EVENT: if (GetAsyncKeyState(VK_LBUTTON)) { cout << "RATO"<<endl; GetWindowRect(window, &wpos); GetCursorPos(&cursorPos); cursorPos.x -= wpos.left; cursorPos.y -= wpos.top; x = (cursorPos.x - 5) / 16; y = (cursorPos.y - 25) / 24; cout << x << " " << y << endl; row = x; col = y; return row; } else if (GetAsyncKeyState(VK_RBUTTON)){ GetWindowRect(window, &wpos); GetCursorPos(&cursorPos); cursorPos.x -= wpos.left; cursorPos.y -= wpos.top; x = (cursorPos.x - 5) / 16; y = (cursorPos.y - 25) / 24; cout << x << " " << y << endl; row = x; col = y; return row; } break; } } } int main() { cout << "\n\n\n click on the stars" << endl; cout << " \n\n\n *******" << endl; int z = 0; int x = 0; int y = 0; int xo = 0; switch (rato(x,y)) { case 1: Game(); break; case 2: Game(); break; case 3: Game(); break; case 4: rato(x, y); break; case 5: rato(x, y); break; case 6: Game(); break; case 7: Game(); break; case 8: Game(); break; case 9: Game(); break; default: cout << "click again"; break; } return 0; } void Game() { int x = 0; int y = 0; int i = 0; cout << "GAME" << endl; do{ i++; rato(x, y); } while (i <= 2); Chu(); } int Chu() { int x = 0; int y = 0; int a = 0; int b = 0; int xo = 0; int yo = 0; cout << "\ click on the stars" << endl; HANDLE hConsole; hConsole = GetStdHandle(STD_OUTPUT_HANDLE); do{ xo = rato(x, y); if (0 <= xo && xo <= 5) { a = 1;} else cout << "CLICK AGAIN" << endl; } while (xo!=0); cout << a; return a; system("PAUSE"); }

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  • How do i get the value of the item selected in listview?

    - by user357032
    i thought i would use the position that i had int but when i click on the item in list view nothing happens. Please Help!!!! ListView d = (ListView) findViewById(R.id.apo); ArrayAdapter adapt = ArrayAdapter.createFromResource( this, R.array.algebra, android.R.layout.simple_list_item_1); d.setAdapter(adapt); d.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView parent, View view, int position, long id) { if (position == '0'){ Intent intent = new Intent(Algebra.this, Alqv.class); startActivity(intent); } if (position == '2'){ Intent intent1 = new Intent(Algebra.this, qfs.class); startActivity(intent1); } } });

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  • How to make an scrollable UITextField Inside UItableViewCell?

    - by user333624
    Hello everyone. I created a bunch of editable UITableViewCell by embedding an UITextField inside, but I have seen some apps that allows you to scroll the UItableview by scrolling inside an inactive editable cell. How can I do that? And how can I also dismiss the keyboard when tapping somewhere else? I know about the method: - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; if (touch.tapCount == 1) { [self resignFirstResponder]; } else { }} I put it inside my custom table view controller but the method doesn't seem to be called upon a tap, and I don't know if even if it gets called will dismiss the keyboard. Any help will be appreciated.

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  • Read a file address from a txt file using netbeans c

    - by Yadira Suazo
    Hi everybody. I`m having problems reading a file address from a txt file. The information seems to be corrupted when I watch it in the debugger. The code is FILE *parch; const char * vectorparch[50]; //array with 50 file paths parch = fopen("/home/irmay/NetBeansProjects/neurona/patrones/patrones.txt", "r"); for(j=0;j<50;j++){ fread ( vectorparch, sizeof ( char ), 50, parch ); propagar(vectorparch[j]); } fclose(parch); The file with paths has 50 strings is like this: "/home/irmay/NetBeansProjects/neurona/patrones/10_0.txt","/home/..." The function propagar is declared void propagar (const char * arch1) Thank you.

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  • Why doesn't this work?

    - by user146780
    I'v tried to solve a memory leak in the GLU callback by creating a global variable but now it dos not draw anything: GLdouble *gluptr = NULL; void CALLBACK combineCallback(GLdouble coords[3], GLdouble *vertex_data[4], GLfloat weight[4], GLdouble **dataOut) { GLdouble *vertex; if(gluptr == NULL) { gluptr = (GLdouble *) malloc(6 * sizeof(GLdouble)); } vertex = (GLdouble*)gluptr; vertex[0] = coords[0]; vertex[1] = coords[1]; vertex[2] = coords[2]; for (int i = 3; i < 6; i++) { vertex[i] = weight[0] * vertex_data[0][i] + weight[1] * vertex_data[0][i] + weight[2] * vertex_data[0][i] + weight[3] * vertex_data[0][i]; } *dataOut = vertex; } basically instead of doing malloc each time in the loop (thus the memory leak) im using a global pointer, but this doesn't work (drawing to the screen). Why would using malloc to a pointer created in the function work any different than a global variable? Thanks

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  • For Qt 4.6.x, how to auto-size text to fit in a specified width?

    - by darenchow
    Inside of my QGraphicsRectItem::paint(), I am trying to draw the name of the item within its rect(). However, for each of the different items, they can be of variable width and similarly names can be of variable length. Currently I am starting with a maximum font size, checking if it fits and decrementing it until I find a font size that fits. So far, I haven't been able to find a quick and easy way to do this. Is there a better, or more efficient way to do this? Thanks! void checkFontSize(QPainter *painter, const QString& name) { // check the font size - need a better algorithm... this could take awhile while (painter->fontMetrics().width(name) > rect().width()) { int newsize = painter->font().pointSize() - 1; painter->setFont(QFont(painter->font().family(), newsize)); } }

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  • how to pass a string to an already opened activity?

    - by Hossein Mansouri
    I have 3 Activities A1,A2,A3 A1 call A2 (A1 goes to stack) A2 call A3 (A2 also goes to stack) And A3 call A1 (A1 should call from stack not new instance...) I don't want to Create new instance of A1 just i want to call it from stack I want to send some Extra String to A1, the problem is here, when i send some String by using putExtra() to A1, A1 can not seen it! I put getIntent() in onResume() for A1 but it s not working... Code in A3 Intent in = new Intent(A3.this,A1.class); in.putExtra("ACTIVITY", "A3"); in.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP); startActivity(in); Code in A1 @Override protected void onResume() { super.onResume(); if(getIntent().getExtras().getString("ACTIVITY")=="A3"){ new LoadAllMyOrders().execute(); }else{ new LoadAllMyshops().execute(); } }

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  • C++ Stringstream int to string but returns null

    - by jumm
    Hi below is my function: string Employee::get_print(void) { string out_string; stringstream ss; ss << e_id << " " << type << endl; out_string = ss.str(); return out_string; } e_id and type are int and they contain values from the class Employee. But when I pass them into the stringstream they just clear the string when I try to out put it. But if I don't have a int in the ss << "Some text" << endl; this output fine. What am I doing wrong =S

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  • Can't get Javac to work on Mac OS X

    - by elguapo-85
    I am trying to compile with javac on Snow Leopard through the command line. I have Xcode installed. I am just using a simple Hello World file, it works in Eclipse but I can't get it to work using javac. javac -version returns javac 1.6.0_17 HelloWorld.java public class HelloWorld { public static void main(String[] args) { String message = "Welcome to Java!"; System.out.println(message); } } I type: javac HelloWorld.java and get the following error. HelloWorld.java:1: class, interface, or enum expected public class HelloWorld ^ 1 error and... javac -cp . HelloWorld.java returns the same. echo $CLASSPATH just returns blank. Thanks for the help.

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  • How to get the Zoom Levels and Lat and Long values of the Map when Zoom in/out.

    - by ChandraSekhar
    I am implement an application based on the MapKit using iphone sdk.I just now a method to get the event when we drag, zoom in/out on the map. The method is as like this (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated Now I need to get the following bullets. 1.TopLeft's and Bottom Right's Latitude and longitude values. 2.Center of the Map. 3.zoom level. Please give me suggessions to solve the above 3 use cases. Thanks in Advance, Sekhar Bethalam.

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  • Best way to move an image across part of the screen?

    - by rushonerok
    I have a Silverlight WP7 app and an image on my page that I want to appear to slide across the screen. What is the best way of doing this? I wrote this real quick but the UI doesn't update until the entire method is done. private void SpinImg(Image img, double left) { for(int i = 1; i <= 10000; i++) { img.Margin = new Thickness(left, img.Margin.Top + 1, 0, 0); if(img.Margin.Top > 314) { //move it to the top img.Margin = new Thickness(left, -105, 0, 0); } int wait = 1000 / i; Thread.Sleep(wait); } }

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  • Bypass using Alter Access Mappings for to Open Web from SPItemEventProperties

    - by Greg Ogle
    In the following code, // class overrides SPItemEventreceiver public override void ItemAdding(SPItemEventProperties properties) { using (var site = new SPSite(properties.SiteId)) //SiteId is integer { ... } } The following exception is thrown: System.IO.FileNotFoundException: The Web application at http://URL could not be found. Verify that you have typed the URL correctly. If the URL should be serving existing content, the system administrator may need to add a new request URL mapping to the intended application. One way to work around this is to hard-code (or configure) the URL specified in Alternate Access Mappings. Putting the correct URL in Alternate Access Mappings is ultimately the correct solution, but if possible, I need a work-around that doesn't require configuration.

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  • Changing memory address of a char*

    - by Randall Flagg
    I have the following code: str = "ABCD"; //0x001135F8 newStr = "EFGH"; //0x008F5740 *str after realloc at 5th position - //0x001135FC I want it to point to: 0x008F5740 void str_cat(char** str, char* newStr) { int i; realloc(*str, strlen(*str) + strlen(newStr) + 1); //*str is now 9 length long // I want to change the memory reference value of the 5th char in *str to point to newStr. // Is this possible? // &((*str) + strlen(*str)) = (char*)&newStr; //This is my problem (I think) }

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  • In App Purchase no valid Product IDs

    - by david
    I'm trying to get In App Purchase with my existing iPad App working. I'm stuck retrieving the Product Information from App Store: - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response The SKProductsResponse only contains invalid Product IDs. I tried every potential solution I found here or on the net: my App ID has In App enabled I generated a new provisioning profile and installed it on my device I restarted the device my App ID is the same as in my Info.plist (it's in the Store since weeks) I added In App Purchases for the App with "cleared for sale" checked I added Screenshots to my In App Purchases I tried different naming schemes for the Product ID I made triple checked that I pass the correct Product ID to the SKProductsRequest I'm passing a NSSet to the SKProductsRequest instead of a MutableSet I updated my App with the upcoming version containing in App purchase and submitted it for Review I approved one of my In App Purchases, just to see if that helps I waited more than 24 hours All of these actions brought me nothing but invalid Product IDs. I hope someone can point me into the right direction, because I'm running out of ideas.

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  • How do I make this ASP.NET MVC controller more testable?

    - by Ragesh
    I have a controller that overrides OnActionExecuting and does something like this: protected override void OnActionExecuting(ActionExecutingContext filterContext) { base.OnActionExecuting(filterContext); string tenantDomain = filterContext.RouteData.Values["tenantDomain"] as string; if (!string.IsNullOrWhiteSpace(tenantDomain)) { using (var tx = BeginTransaction()) { this.Tenant = repo.FindOne(t => t.Domain == tenantDomain); } } } Tenant is a protected property with a private setter. The class itself is an abstract base controller that my real controllers derive from. I have code in other controllers that looks a lot like this: if (Tenant == null) { // Do something } else { // Do something else } How do I test this code? What I need to do is to somehow set the Tenant property, but I can't because: It's a protected property, and It has a private setter Changing the visibility of Tenant doesn't "feel" right. What are my alternatives to unit test my derived controllers?

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  • CGContextShowTextAtPoint: invalid context

    - by coure06
    I want to call a method responsible for drawing text on screen after each 5 seconds. Here is my code -(void) handleTimer: (NSTimer *)timer { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, currentColor.CGColor); CGContextTranslateCTM(context, 145.0, 240.0); CGContextScaleCTM(context, 1.0, -1.0); CGContextSelectFont(context, "Arial", 18, kCGEncodingMacRoman); CGContextSetCharacterSpacing(context, 1); CGContextSetTextDrawingMode(context, kCGTextFillStroke); CGContextSetRGBStrokeColor(context, 0.5,0.5,1,1); CGContextShowTextAtPoint(context, 100, 100, "01", 2); } But after 5 seconds when this method is called i am getting this error CGContextShowTextAtPoint: invalid context Another thing is how to show a thinner font?

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  • where to put .properties files in an Eclipse project?

    - by Jason S
    I have a very simple properties file test I am trying to get working: (the following is TestProperties.java) package com.example.test; import java.util.ResourceBundle; public class TestProperties { public static void main(String[] args) { ResourceBundle myResources = ResourceBundle.getBundle("TestProperties"); for (String s : myResources.keySet()) { System.out.println(s); } } } and TestProperties.properties in the same directory: something=this is something something.else=this is something else which I have also saved as TestProperties_en_US.properties When I run TestProperties.java from Eclipse, it can't find the properties file: java.util.MissingResourceException: Can't find bundle for base name TestProperties, locale en_US Am I doing something wrong?

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  • Store return value of function in reference C++

    - by Ruud v A
    Is it valid to store the return value of an object in a reference? class A { ... }; A myFunction() { A myObject; return A; } //myObject goes out of scope here void mySecondFunction() { A& mySecondObject = myFunction(); } Is it possible to do this in order to avoid copying myObject to mySecondObject? myObject is not needed anymore and should be exactly the same as mySecondObject so it would in theory be faster just to pass ownership of the object from one object to another. (This is also possible using boost shared pointer but that has the overhead of the shared pointer.) Thanks in advance.

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  • Multiplying complex with constant in C++

    - by Atilla Filiz
    The following code fails to compile #include <iostream> #include <cmath> #include <complex> using namespace std; int main(void) { const double b=3; complex <double> i(0, 1), comp; comp = b*i; comp=3*i; return 0; } with error: no match for ‘operator*’ in ‘3 * i’ What is wrong here, why cannot I multiply with immediate constants?

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  • How can a servlet always perform the same task?

    - by membersound
    I want a Servlet to perform always the same tasks. Regardless of if it is a GET or POST. At the moment I just call the doGet() from doPost(), which works fine. Then I tried overriding the service() method, and I thought it would just work the same way. But it does not! The code somehow gets executed, but the response does not generate the webpage: response.getWriter(); response.println(string); This code works for the doGet/doPost methods, but not for the service. Why? Servlet: class MyWebServlet extends HttpServlet { @Override public void service(ServletRequest request, ServletResponse response) { response.setContentType("text/html"); PrintWriter out = response.getWriter(); String string = "teststring"; out.println(string); } }

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  • AS3 Accessing Variables of Parent Class From Child

    - by TheDarkIn1978
    i'm trying to assign a parent's variable from the parent's child //Parent public class Main extends Sprite { public var selectedSquare:Sprite; public function Main() { //inits and adds new Square child class to display list } ... ------- //Child public function dragSquare(evt:MouseEvent):void { Sprite(parent).selectedSquare = this; //evil doesn't work! parent.addChild(this); this.startDrag(); } i'm receiving this error, but i'm casting parent from displayObjectContainer to a Sprite so i have no idea why it's not working. 1119: Access of possibly undefined property selectedSquare through a reference with static type flash.display:Sprite.

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  • UILabels text disappears when animating

    - by Wilhelm Michaelsen
    I have this code: - (void)my_button_tapped { if (my_button.tag == 0) { [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.5]; my_label.frame = CGRectMake(450, 455, 200, 20); [UIView commitAnimations]; [my_button setBackgroundImage:[UIImage imageNamed:@"check.png"] forState:UIControlStateNormal]; my_button.tag = 1; } else { [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.5]; my_label.frame = CGRectMake(450, 455, 0, 20); [UIView commitAnimations]; [my_button setBackgroundImage:nil forState:UIControlStateNormal]; my_button.tag = 0; } } When I tap my_button first time the label is expanded into 200px width, when I press the button again the label decreases to 0px width but immediately at button press the text disappears. What's wrong?

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